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What This Sitemap Validator Checks

Our Sitemap Validator checks your XML sitemap. It makes sure the structure and entries meet common Sitemap Protocol requirements. It also helps you spot technical issues that might stop search engines from reading or processing your sitemap correctly.
  • Our tool checks if the sitemap uses valid XML and follows the right structure. It includes both regular sitemaps and sitemap indexes
  • Verifies that the required sitemap namespace is present and correctly defined
  • Checks if each has a complete, correctly formatted URL, not a relative path
  • Review values to ensure they use a valid date format
  • Checks the and values when they are included
  • Finds repeated URL entries that may indicate duplicate or incorrectly sitemap data

Sitemap Size and URL Limits

A single sitemap file can contain up to 50,000 URLs and must not exceed 50 MB when uncompressed. If your website exceeds either limit, you can split the URLs into several sitemap files and use a sitemap index.

What This Tool Does Not Check

Sitemap validation is different from a complete website crawl. A valid sitemap doesn’t ensure that every page is indexed, ranked, or crawled.

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Your Questions, Our Answers

What does this Sitemap Validator check?

It checks the:
  • XML structure
  • Sitemap format
  • Namespace
  • URL entries
  • Optional sitemap values
  • Duplicate URLs
  • File or URL limits
It helps spot common sitemap issues before you send the file to search engines.

How do I check a sitemap?

Enter your sitemap URL or provide the XML content in the validator, then run the check. The tool reviews the sitemap and highlights issues that need your attention.

Does changefreq affect Google crawling?

changefreq is an optional sitemap hint rather than a command to Google. Search engines can use their own crawling methods and signals to decide how often to revisit a URL.

What is a sitemap index?

A sitemap index is an XML file that lists multiple sitemap files. It helps larger websites that need multiple sitemaps. This is due to the 50,000 URL or 50 MB limit for a single sitemap.

What should I do after validating my sitemap?

You need to do few important things, like:
  • Fix any errors reported by the validator
  • Make sure the sitemap contains the URLs you want search engines to discover
  • Submit it using the appropriate search engine tools, such as Google Search Console

What are the most common sitemap errors?

Common problems are:
  • Malformed XML
  • Missing sitemap namespace
  • Invalid or incomplete URLs
  • Incorrect date values
  • Duplicate URLs
  • Unsupported optional values
  • Exceeding the sitemap's size or URL limits

How many URLs can an XML sitemap contain?

A single sitemap can contain up to 50,000 URLs and must remain within the 50 MB uncompressed file size limit. Websites with many URLs can split them into several sitemap files. They can then link these files using a sitemap index.